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121123131123230 = 2583710920527709
BaseRepresentation
bin11011100010100100101101…
…001101000110011000011110
3120212212020222021010121111222
4123202210231031012120132
5111333440133031420410
61105335110454413342
734340600050210565
oct3342445515063036
9525766867117458
10121123131123230
1135659038933475
1211702583661252
135277b294b3bc2
1421ca5685d8bdc
15e00a55bb7955
hex6e292d34661e

121123131123230 has 32 divisors (see below), whose sum is σ = 220679451367200. Its totient is φ = 47858791096192.

The previous prime is 121123131123227. The next prime is 121123131123263. The reversal of 121123131123230 is 32321131321121.

It is a self number, because there is not a number n which added to its sum of digits gives 121123131123230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4363385 + ... + 16164324.

It is an arithmetic number, because the mean of its divisors is an integer number (6896232855225).

Almost surely, 2121123131123230 is an apocalyptic number.

121123131123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121123131123230 is a deficient number, since it is larger than the sum of its proper divisors (99556320243970).

121123131123230 is a wasteful number, since it uses less digits than its factorization.

121123131123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20534908.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121123131123230 its reverse (32321131321121), we get a palindrome (153444262444351).

The spelling of 121123131123230 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 83 166 415 830 7109 14218 35545 71090 590047 1180094 2950235 5900470 20527709 41055418 102638545 205277090 1703799847 3407599694 8518999235 17037998470 145931483281 291862966562 729657416405 1459314832810 12112313112323 24224626224646 60561565561615 121123131123230